Noah K. Murray/The Star-LedgerA small group of Occupy Newark protesters marched from Military Park to city hall.

NEWARK — They planned for weeks. They petitioned city hall. They even brought extra mittens.

But as 9 p.m. approached this evening, it was unclear if the 30 or so protesters of Occupy Newark were going to give up their barely-begun occupation of Military Park. Police said they plan to enforce a curfew that forbids anyone from sleeping overnight in the city park.

Some of the protesters said if they leave, they are determined to return to the downtown park Saturday to restate their demands for economic justice.

"I’m just furious that we bailed out Wall Street on the backs of the 99 percent," said Angela Cali, a protester from West Paterson. "There are corporations that are flush with money and they don’t pay taxes and people are suffering so much."

The fledgling Occupy Newark group is a smaller offshoot of the larger and rowdier Occupy Wall Street movement that has spent the last two months making headlines with protests in Manhattan.

The Newark protesters arrived in Military Park this afternoon, determined to stay at least through the weekend. They brought cardboard signs and painted bed sheets displaying their grievances, which ranges from corporate welfare to tax breaks for millionaires, Mayor Cory Booker’s salary and childhood asthma.

Ari Wohlfeiler, an Oakland, Calif., native, joined the Newark protest after making the circuit of occupations in Wall Street, Oakland and Philadelphia over the last two months. over the past two months, having participated in protests on Wall Street, Oakland and Philadelphia.

While the protesters have not rallied around one specific cause, all of their issue revolve around a "core of economic injustice," Wohlfeiler said.

Just before 7 p.m., union officials stopped by the Occupy Newark rally with plates full of sandwiches for hungry protesters.

Rahaman Muhammad, president of Service Employees International Union Local 617, said he was sypathetic to the protesters’ causes. But he offered them some practical advice for effecting change.